Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30802-b11b770002) Lines: 2553 2925 87.3 %
Date: 2026-04-12 09:26:48 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449675
Fl2_inv_pre 197312
Fl2_mul_pre 17091954
Fl2_norm_pre 97118551
Fl2_pow_pre 671486
Fl2_sqr_pre 4907923
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76059
Fl_Flxq_log 35577
Fl_Xp1_powu 0
Fl_to_Flx 21948201
Flm_to_FlxV 2772
FlvV_polint_tree 2587841
Flv_Flm_polint 104561
Flv_inv 1744781
Flv_invVandermonde 153445
Flv_inv_i 1756793
Flv_inv_indir 52211
Flv_inv_inplace 12017
Flv_inv_pre 9646
Flv_inv_pre_indir 21069320
Flv_inv_pre_inplace 19326906
Flv_polint 1485497
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745985
Flv_roots_to_pol 842173
Flv_to_Flx 25490946
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325155
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81591
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116259
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 295664
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28985
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171866
FlxV_to_Flm_lg 12970748
FlxV_to_FlxX 397987
FlxV_to_ZXV 609498
FlxV_to_ZXV_inplace 3032559
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9843246
Flx_Fl_mul 9423095
Flx_Fl_mul_pre 20198309
Flx_Fl_mul_to_monic 11857468
Flx_Fl_sub 151686
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786282
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169190
Flx_Flxq_eval 791477
Flx_Flxq_eval_pre 2444899
Flx_Frobenius 86619
Flx_Frobenius_pre 13816699
Flx_Laplace 27487
Flx_Newton 54378
Flx_add 73790963
Flx_addmulmul 358983
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527644
Flx_blocks_Flm 12969803
Flx_composedprod 0
Flx_composedsum 27696
Flx_convol 0
Flx_deflate 421326
Flx_deriv 23015479
Flx_diff1 660677
Flx_digits 0
Flx_div_by_X_x 36580550
Flx_divrem 30450053
Flx_divrem_Barrett 604996
Flx_divrem_Barrettspec 906495
Flx_divrem_basecase 61240519
Flx_divrem_pre 78678686
Flx_double 1179459
Flx_equal 27538159
Flx_eval 20429315
Flx_eval2BILspec 603317
Flx_eval_powers_pre 48561503
Flx_eval_pre 136190071
Flx_extgcd 857087
Flx_extgcd_basecase 6183816
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6183776
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109539
Flx_gcd 35030096
Flx_gcd_basecase 85794983
Flx_gcd_pre 87460366
Flx_get_red 14506803
Flx_get_red_pre 98439211
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088062
Flx_halfgcd_all_pre 1088064
Flx_halfgcd_pre 873151
Flx_halfres_basecase 1095142
Flx_halfres_i 1115106
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160558
Flx_integ 0
Flx_integXn 423288
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134389
Flx_invBarrett_pre 158850
Flx_invLaplace 54634
Flx_is_l_pow 8198
Flx_is_smooth 74256
Flx_is_smooth_pre 118913
Flx_is_smooth_squarefree 127112
Flx_is_squarefree 9201186
Flx_lgrenormalizespec 2134841
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31526
Flx_mod_Xnm1 4908469
Flx_mul 26716831
Flx_mul_pre 383295328
Flx_mulhigh_i 949805
Flx_mullimb 1187703883
Flx_mullimb_ok 3384337950
Flx_mulspec 388906263
Flx_mulspec_Kronecker 7370279
Flx_mulspec_basecase 348960226
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10140
Flx_mulspec_mulii_inflate 294057
Flx_mulspec_quartmulii 97166
Flx_neg 4175918
Flx_neg_inplace 1799550
Flx_negspec 4175914
Flx_normalize 64824724
Flx_powu 0
Flx_powu_pre 3940
Flx_recip 0
Flx_recipspec 7289406
Flx_red 1882684
Flx_rem 42232160
Flx_rem_basecase 802178637
Flx_rem_pre 928230305
Flx_renormalize 2171748473
Flx_rescale 1117
Flx_resultant 4740373
Flx_resultant_basecase_pre 14606823
Flx_resultant_pre 14608866
Flx_shift 27402352
Flx_shiftip 633333174
Flx_splitting 147495
Flx_sqr 370269
Flx_sqr_pre 275949655
Flx_sqrspec 276080079
Flx_sqrspec_Kronecker 670327
Flx_sqrspec_basecase 275293095
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2065
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136567487
Flx_subspec 898966
Flx_to_Flv 66648315
Flx_to_FlxX 71405
Flx_to_ZX 38376379
Flx_to_ZX_inplace 36544665
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 663346
Flx_translate1_basecase 675438
Flx_triple 551294
Flx_unscale 0
Flx_val 4472507
Flx_valrem 28470029
Flxn_div 56597
Flxn_div_pre 56618
Flxn_exp 0
Flxn_expint 109540
Flxn_inv 1037
Flxn_mul 75971
Flxn_mul_pre 5183233
Flxn_mulhigh 527562
Flxn_recip 218055
Flxn_red 6366518
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234855
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69413
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779538
Flxq_auttrace_pre 960109
Flxq_auttrace_sqr 652271
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519437
Flxq_inv 335792
Flxq_inv_pre 4183780
Flxq_invsafe 670398
Flxq_invsafe_pre 5326706
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170646
Flxq_minpoly 45937
Flxq_minpoly_pre 809679
Flxq_mul 18079987
Flxq_mul_pre 194024278
Flxq_norm 443244
Flxq_order 97322
Flxq_pow 932912
Flxq_pow_Frobenius 23718543
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24766839
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232131
Flxq_powers_pre 22440713
Flxq_powu 488361
Flxq_powu_pre 24181716
Flxq_sqr 2763472
Flxq_sqr_pre 274966349
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212135
Flxq_transmul_init 1746260
RgXV_to_FlxV 7
RgX_to_Flx 2209602
Rg_to_F2 1715148
Rg_to_Fl 73086125
Rg_to_Flxq 3461449
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798234
ZXV_to_FlxV 0
ZX_to_Flx 171039579
Z_mod2BIL_Flx 305871
Z_mod2BIL_Flx_2 308801
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593947
ZpX_invLaplace_init 497
_Fl2_mul 1923577
_Fl2_pow 671471
_Fl2_rand 113799
_Fl2_sqr 4907954
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11776088
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149572314
_Flxq_neg 366572
_Flxq_one 22438665
_Flxq_pow 23711135
_Flxq_powu 68
_Flxq_powu_i 22928361
_Flxq_rand 6569
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268677229
bounded_order 394014
gener_Flxq 7201
get_Fl_threshold 2330953095
get_Flx_red 991202767
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12211
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21004348
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5624619
kron_unpack_Flx_bits_wide 5699703
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8475643
mkF2 27664067
monomial_Flx 941248
random_Flx 2646085
set_Flxq 68922
set_Flxq_pre 70686326
translate_basecase 688603
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6404447

Generated by: LCOV version 1.16