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 30604-e5d817ee12) Lines: 2553 2925 87.3 %
Date: 2026-01-09 09:21:43 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2070
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
Flx_powu_pre 3860
_Flx_composedsum 3882
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6553
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8204
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10140
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12216
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14371
Flx_translate1 17030
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27355
Flx_composedsum 27549
FlxV_composedsum 28954
Flx_translate1_basecase 29111
Flx_mod_Xn1 31509
FlxV_Flc_mul 34482
Fl_Flxq_log 35542
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42283
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47314
Flv_inv_indir 52215
kron_pack_Flx_spec 53168
Flx_Newton 54092
Flx_invLaplace 54374
Flxn_div 55150
Flxn_div_pre 55183
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69451
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75841
Fl2_sqrtn_pre 76082
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86569
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97175
Flxq_order 97328
Flxq_autsum_pre 98769
FlxC_to_ZXC 104060
Flv_Flm_polint 104562
Flxq_autsum_sqr 105113
int_to_Flx_quart 107397
Flx_fromNewton 109402
Flxn_expint 109405
Flxq_autsum_mul 112476
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113881
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118899
Flx_is_smooth_squarefree 127156
Fl2_norm_pre 127575
Flx_invBarrett_basecase 134391
Flx_extgcd_halfgcd 146655
Flx_splitting 146926
Flx_Fl_sub 151686
Flv_invVandermonde 153445
Flx_invBarrett_pre 158851
Flx_inflate 159951
Flxq_log 164210
Flxq_matrix_pow_pre 170658
FlxV_to_Flm 171880
Fl2_inv_pre 197425
Flx_to_int_quartspec 204570
Flxq_sumautsum_pre 210713
Flxn_recip 217304
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232012
FlxqC_red_pre 234845
Flxq_div 237864
get_Flxq_star 283439
FlxT_red 290556
Flx_mulspec_mulii_inflate 294054
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305868
Z_mod2BIL_Flx_2 308798
FlxC_eval_powers_pre 325151
Flxq_inv 335772
Flx_sqr 354600
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395373
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416801
Flx_deflate 420791
Flx_integXn 422729
Flxq_norm 443140
Fl2_equal1 450026
Flx_to_int_halfspec 468590
Flxq_powu 488336
int_to_Flx_half 507058
Flxn_mulhigh 516784
Flx_blocks 516854
Flxq_easylog 519375
Flx_eval2BILspec 603311
Flx_divrem_Barrett 603597
FlxV_to_ZXV 606741
Flxq_auttrace_sqr 652706
Flxq_invsafe 669945
_Fl2_pow 671906
Fl2_pow_pre 671924
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 694980
Flxq_auttrace_mul 780020
Flx_Flxq_eval 791292
Flxq_minpoly_pre 809656
Flv_roots_to_pol 842039
Flx_extgcd 856684
Flx_halfgcd_pre 873156
Flx_subspec 897499
Flx_divrem_Barrettspec 904967
Flx_mulhigh_i 938474
monomial_Flx 941234
Flxq_pow 948278
Flxq_auttrace_pre 959784
Flx_triple 1049261
Flx_halfgcd_all_i 1127268
Flx_halfgcd_all_pre 1127270
Flx_halfres_basecase 1134343
Flx_halfres_i 1154311
_Flxq_rmul 1461838
Flv_polint 1485147
_Flxq_red 1550928
Rg_to_F2 1710266
Flv_inv 1744438
Flv_producttree 1745635
Flxq_transmul_init 1746291
Flv_inv_i 1756449
Flx_neg_inplace 1777875
Flx_Flv_multieval_tree 1785943
Flx_red 1876696
_Fl2_mul 1924162
Fl2_mul_pre 1953176
Flx_lgrenormalizespec 2132207
RgX_to_Flx 2249941
Flxq_div_pre 2416819
Flx_double 2443925
Flx_Flxq_eval_pre 2444606
FlvV_polint_tree 2587298
random_Flx 2645856
Flxq_sqr 2763157
FlxV_to_ZXV_inplace 3031573
Flx_negspec 3263462
Flx_neg 3263464
Rg_to_Flxq 3588253
Flx_addshift 3724675
ZXT_to_FlxT 3812056
Flxq_transmul 4212501
Flxq_inv_pre 4286510
Flx_val 4473877
Flx_resultant 4732984
Flx_mod_Xnm1 4907568
Fl2_sqr_pre 4908347
_Fl2_sqr 4908433
Flxn_mul_pre 5158250
Flxq_invsafe_pre 5429014
kron_unpack_Flx_bits_narrow 5654539
kron_unpack_Flx_bits_wide 5670269
Flx_extgcd_pre 6285641
Flx_extgcd_basecase 6285672
Flxn_red 6328859
zx_to_Flx 6403021
Flx_addspec 7250880
Flx_recipspec 7285890
mkF2 7321960
Flx_Fl_mul 7326692
Flx_mulspec_Kronecker 7346465
Z_to_Flx 7556404
maxbitcoeffpol 8475755
Flx_is_squarefree 9180748
Flx_Fl_add 9843844
_Flx_mul 11765630
Flx_Fl_mul_to_monic 11855555
Flx_blocks_Flm 12966739
FlxV_to_Flm_lg 12967373
Flx_FlxqV_eval_pre 13165877
Flxq_mul 13192297
Flx_Frobenius_pre 13812149
Flx_get_red 14502993
Flx_resultant_basecase_pre 14597414
Flx_resultant_pre 14599548
Flx_Fl_mul_pre 18290348
Flv_inv_pre_inplace 19341919
Flx_eval 20419953
kron_pack_Flx_spec_bits 20980991
Flv_inv_pre_indir 21084553
Fl_to_Flx 21930360
Flxq_powers_pre 22435177
_Flxq_one 22435314
_Flxq_pow 22696620
Flxq_pow_Frobenius 22704030
_Flxq_powu_i 22925861
Flx_deriv 22982472
Flxq_pow_pre 23767584
Flxq_powu_pre 24178080
Flv_to_Flx 25485521
Flx_equal 27259719
Flx_shift 27378015
Flx_mul 27812898
Flx_valrem 28447934
Flx_divrem 30449601
Flx_gcd 35010835
Flx_div_by_X_x 36538877
Flx_to_ZX_inplace 36573626
Flx_to_ZX 38296692
Flx_rem 42215778
Flx_eval_powers_pre 48574514
Flx_divrem_basecase 62280625
Flx_normalize 64774916
Flx_add 66083119
Flx_to_Flv 66642068
set_Flxq_pre 69681837
Rg_to_Fl 73208837
Flx_divrem_pre 79723735
Flx_gcd_basecase 85769375
Flx_gcd_pre 87427245
Flx_get_red_pre 97430821
Flx_eval_pre 136162546
Flx_sub 138634844
_Flxq_mul 147466930
ZX_to_Flx 171019628
Flxq_mul_pre 188671436
_Flxq_sqr 267607880
Flxq_sqr_pre 275506270
Flx_sqrspec_basecase 275890080
Flx_sqr_pre 276485577
Flx_sqrspec 276617271
Flx_mulspec_basecase 347669355
Flx_mul_pre 379782135
Flx_mulspec 385357688
Flx_shiftip 632690183
Flx_rem_basecase 799750811
Flx_rem_pre 923587120
get_Flx_red 987591399
Flx_mullimb 1191569518
Flx_renormalize 2152882514
get_Fl_threshold 2327831005
Flx_mullimb_ok 3360215586

Generated by: LCOV version 1.16