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 30666-e2f9826198) Lines: 2553 2925 87.3 %
Date: 2026-02-04 09:22:32 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 2069
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_composedsum 3882
Flx_powu_pre 3920
Flxq_pow_table_pre 4391
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6582
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8193
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10142
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 12217
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19964
Flxq_autpow_msqr 20700
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23093
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27335
Flx_composedsum 27550
FlxV_composedsum 28962
Flx_translate1_basecase 29202
Flx_mod_Xn1 31509
FlxV_Flc_mul 34482
Fl_Flxq_log 35558
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47326
Flv_inv_indir 52212
kron_pack_Flx_spec 53168
Flx_Newton 54106
Flx_invLaplace 54369
Flxn_div 56344
Flxn_div_pre 56366
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69457
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75845
Fl2_sqrtn_pre 76015
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86565
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97167
Flxq_order 97328
Flxq_autsum_pre 98775
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 105129
int_to_Flx_quart 107385
Flx_fromNewton 109396
Flxn_expint 109396
Flxq_autsum_mul 112496
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113828
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118671
Flx_is_smooth_squarefree 126846
Fl2_norm_pre 127552
Flx_invBarrett_basecase 134392
Flx_extgcd_halfgcd 146651
Flx_splitting 147380
Flx_Fl_sub 151683
Flv_invVandermonde 153445
Flx_invBarrett_pre 158852
Flx_inflate 160507
Flxq_log 164210
Flxq_matrix_pow_pre 170656
FlxV_to_Flm 171875
Fl2_inv_pre 197038
Flx_to_int_quartspec 204552
Flxq_sumautsum_pre 210713
Flxn_recip 217368
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232002
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283437
Flx_mulspec_mulii_inflate 294053
FlxT_red 294633
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
FlxC_eval_powers_pre 325156
Flxq_inv 335761
Flx_sqr 354678
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395409
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416791
Flx_deflate 420801
Flx_integXn 422759
Flxq_norm 443137
Fl2_equal1 449554
Flx_to_int_halfspec 468590
Flxq_powu 488341
int_to_Flx_half 507058
Flxq_easylog 519366
Flxn_mulhigh 526111
Flx_blocks 526190
Flx_eval2BILspec 603309
Flx_divrem_Barrett 604708
FlxV_to_ZXV 606829
Flxq_auttrace_sqr 652779
Flxq_invsafe 670364
_Fl2_pow 671063
Fl2_pow_pre 671080
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695074
Flxq_auttrace_mul 780099
Flx_Flxq_eval 791288
Flxq_minpoly_pre 809648
Flv_roots_to_pol 842138
Flx_extgcd 856786
Flx_halfgcd_pre 873002
Flx_subspec 898571
Flx_divrem_Barrettspec 906277
monomial_Flx 941075
Flx_mulhigh_i 947932
Flxq_pow 948235
Flxq_auttrace_pre 959915
Flx_triple 1049261
Flx_halfgcd_all_i 1126679
Flx_halfgcd_all_pre 1126684
Flx_halfres_basecase 1133754
Flx_halfres_i 1153722
_Flxq_rmul 1461838
Flv_polint 1485157
_Flxq_red 1550928
Rg_to_F2 1710149
Flv_inv 1744433
Flv_producttree 1745634
Flxq_transmul_init 1745964
Flv_inv_i 1756445
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785949
Flx_red 1880399
_Fl2_mul 1923258
Fl2_mul_pre 1952303
Flx_lgrenormalizespec 2134418
RgX_to_Flx 2249943
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444580
FlvV_polint_tree 2587508
random_Flx 2645835
Flxq_sqr 2763155
FlxV_to_ZXV_inplace 3031590
Flx_negspec 3264383
Flx_neg 3264418
Rg_to_Flxq 3588252
Flx_addshift 3729093
ZXT_to_FlxT 3813051
Flxq_transmul 4211926
Flxq_inv_pre 4286490
Flx_val 4470889
Flx_resultant 4731627
Flx_mod_Xnm1 4907450
_Fl2_sqr 4908686
Fl2_sqr_pre 4908703
Flxn_mul_pre 5179061
Flxq_invsafe_pre 5429419
kron_unpack_Flx_bits_narrow 5663730
kron_unpack_Flx_bits_wide 5669471
Flx_extgcd_pre 6286189
Flx_extgcd_basecase 6286212
Flxn_red 6360127
zx_to_Flx 6396164
Flx_addspec 7259598
Flx_recipspec 7287251
mkF2 7320959
Flx_Fl_mul 7327533
Flx_mulspec_Kronecker 7355571
Z_to_Flx 7556386
maxbitcoeffpol 8484728
Flx_is_squarefree 9180901
Flx_Fl_add 9844098
_Flx_mul 11783915
Flx_Fl_mul_to_monic 11855653
Flx_blocks_Flm 12967777
FlxV_to_Flm_lg 12968510
Flx_FlxqV_eval_pre 13167418
Flxq_mul 13192528
Flx_Frobenius_pre 13812909
Flx_get_red 14503462
Flx_resultant_basecase_pre 14596729
Flx_resultant_pre 14598711
Flx_Fl_mul_pre 18291494
Flv_inv_pre_inplace 19373668
Flx_eval 20436294
kron_pack_Flx_spec_bits 20997736
Flv_inv_pre_indir 21107468
Fl_to_Flx 21953590
_Flxq_one 22435165
Flxq_powers_pre 22436557
_Flxq_pow 22608760
Flxq_pow_Frobenius 22616174
_Flxq_powu_i 22921738
Flx_deriv 22981241
Flxq_pow_pre 23679573
Flxq_powu_pre 24178145
Flv_to_Flx 25487547
Flx_equal 27175076
Flx_shift 27395201
Flx_mul 27807499
Flx_valrem 28464261
Flx_divrem 30450256
Flx_gcd 35012004
Flx_div_by_X_x 36561613
Flx_to_ZX_inplace 36570879
Flx_to_ZX 38297927
Flx_rem 42224259
Flx_eval_powers_pre 48593242
Flx_divrem_basecase 62285598
Flx_normalize 64793372
Flx_add 66134911
Flx_to_Flv 66645152
set_Flxq_pre 69595487
Rg_to_Fl 73208887
Flx_divrem_pre 79726976
Flx_gcd_basecase 85766121
Flx_gcd_pre 87430738
Flx_get_red_pre 97344512
Flx_eval_pre 136178762
Flx_sub 138645590
_Flxq_mul 147304713
ZX_to_Flx 170996763
Flxq_mul_pre 188509503
_Flxq_sqr 267731798
Flxq_sqr_pre 275557720
Flx_sqrspec_basecase 275901994
Flx_sqr_pre 276536304
Flx_sqrspec 276697036
Flx_mulspec_basecase 347637227
Flx_mul_pre 379842379
Flx_mulspec 385432052
Flx_shiftip 633021247
Flx_rem_basecase 799457288
Flx_rem_pre 923574157
get_Flx_red 987650082
Flx_mullimb 1187466464
Flx_renormalize 2154161837
get_Fl_threshold 2327637122
Flx_mullimb_ok 3379628900

Generated by: LCOV version 1.16