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 - RgX.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30317-3ce82218f7) Lines: 1623 1779 91.2 %
Date: 2025-06-05 09:19:38 Functions: 204 222 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Kronecker_to_mod 186210
QXQC_to_mod_shallow 14938
QXQM_to_mod_shallow 6734
QXQV_to_mod 18354
QXQXV_to_mod 12558
QXQX_homogenous_evalpow 1652
QXQX_to_mod 37275
QXQX_to_mod_shallow 203599
QXQ_powers 9212
QXQ_to_mod 167226
QXQ_to_mod_shallow 840415
QXV_QXQ_eval 3017
QXY_QXQ_evalx 245
QX_ZXQV_eval 6986
RgM_to_RgXV 301988
RgM_to_RgXV_reverse 7202
RgM_to_RgXX 23476
RgV_to_RgM 335620
RgV_to_RgX 1493203
RgV_to_RgX_reverse 188283
RgXQC_red 68355
RgXQM_mul 322
RgXQM_red 13223
RgXQV_RgXQ_mul 133
RgXQV_factorback 7118
RgXQV_red 1211
RgXQX_RgXQ_mul 35
RgXQX_divrem 155730
RgXQX_mul 0
RgXQX_powers 0
RgXQX_pseudodivrem 12063
RgXQX_pseudorem 627346
RgXQX_red 508531
RgXQX_sqr 0
RgXQX_translate 32464
RgXQ_matrix_pow 2940
RgXQ_norm 5158
RgXQ_pow 102160
RgXQ_powers 8582
RgXQ_powu 116645
RgXQ_trace 476
RgXV_RgV_eval 2947
RgXV_maxdegree 588
RgXV_prod 0
RgXV_rescale 2401
RgXV_to_RgM 78555
RgXV_unscale 6237
RgXX_to_RgM 322
RgXY_degreex 1387
RgXY_derivx 3836
RgXY_swap 2051
RgXY_swapspec 32771
RgX_RgV_eval 166768
RgX_RgXQV_eval 0
RgX_RgXQ_eval 417214
RgX_RgXnV_eval 966
RgX_RgXn_eval 0
RgX_Rg_add 44515542
RgX_Rg_add_shallow 65068
RgX_Rg_div 30322918
RgX_Rg_divexact 7176640
RgX_Rg_eval_bk 0
RgX_Rg_mul 201363238
RgX_Rg_sub 1222858
RgX_add 144846684
RgX_addmulXn 514764
RgX_addmulXn_shallow 10066162
RgX_addspec 222294
RgX_addspec_shallow 8907844
RgX_affine 30212
RgX_blocks 2788484
RgX_deflate 1175470
RgX_deriv 825386
RgX_digits 3157
RgX_div_by_X_x 263524
RgX_divrem 14231947
RgX_divrem_i 23513158
RgX_divs 2667
RgX_equal 24895471
RgX_even_odd 49737261
RgX_homogenize 18732
RgX_homogenize_deg 1260
RgX_homogenous_evalpow 668306
RgX_inflate 881932
RgX_integXn 56376
RgX_liftred 455393
RgX_mul 107411172
RgX_mul2n 65268
RgX_mulXn 2997279
RgX_mul_FpX 609812
RgX_mul_FpXQX 2079
RgX_mul_QXQX 171133
RgX_mul_fast 121144351
RgX_mul_i 38830855
RgX_mul_normalized 1719107
RgX_mulhigh_i 2671190
RgX_mulhigh_i2 1589510
RgX_muls 3992
RgX_mulspec 40267150
RgX_mulspec_basecase 34200918
RgX_mulspec_basecase_limb 111060132
RgX_neg 8820344
RgX_normalize 39130
RgX_pseudodivrem 11818
RgX_pseudorem 627346
RgX_recip 31388
RgX_recip_i 5112130
RgX_recip_shallow 59388
RgX_recipspec_shallow 2583582
RgX_rem 14705295
RgX_rem_FpX 68320
RgX_rem_FpXQX 70
RgX_rem_QXQX 49851
RgX_rem_fast 14705290
RgX_renormalize_lg 7886611
RgX_rescale 4342470
RgX_rotate_shallow 317037
RgX_shift 1578036
RgX_shift_shallow 175571137
RgX_splitting 43631
RgX_sqr 1372223
RgX_sqr_FpX 1407
RgX_sqr_FpXQX 196
RgX_sqr_QXQX 13425
RgX_sqr_fast 1384375
RgX_sqr_i 37961
RgX_sqrhigh_i 0
RgX_sqrhigh_i2 0
RgX_sqrspec 38039
RgX_sqrspec_basecase 38000
RgX_sqrspec_basecase_limb 100082
RgX_sub 72804398
RgX_to_RgC 13410519
RgX_translate 6063484
RgX_translate_FpX 0
RgX_translate_basecase 5701872
RgX_translate_fast 6063483
RgX_translate_i 5702061
RgX_unscale 51507
RgX_val 3667905
RgX_valrem 80772244
RgX_valrem_inexact 852070
RgXnV_red_shallow 483
RgXn_div 584450
RgXn_div_FpX 119
RgXn_div_FpXQX 7
RgXn_div_fast 1284113
RgXn_div_gen 2188990
RgXn_div_i 1284113
RgXn_eval 5187
RgXn_exp 0
RgXn_expint 52917
RgXn_inv 807483
RgXn_inv_FpX 91
RgXn_inv_FpXQX 0
RgXn_inv_fast 905095
RgXn_inv_i 905095
RgXn_mul 11061996
RgXn_mul2 9414549
RgXn_mul_basecase 6627987
RgXn_mulhigh 2614799
RgXn_powers 483
RgXn_powu 0
RgXn_powu_i 2286
RgXn_recip_shallow 642753
RgXn_red_shallow 7944009
RgXn_reverse 154
RgXn_sqr 12152
RgXn_sqr2 315
RgXn_sqr_basecase 0
RgXn_sqrhigh 14
RgXn_sqrt 7
RgXspec_kill0 81695609
Rg_RgX_sub 4951869
Rg_get_0 6942919
Rg_get_1 156948600
Rg_to_RgC 1355781
ZXQX_dvd 17342
ZXQ_powers 11767
ZXQ_powu 168505
ZX_unscale 1013197
ZX_unscale2n 923925
ZX_unscale_div 12997
ZX_unscale_divpow 1393
ZX_z_unscale 1467270
_RgX_divrem 11333
_RgX_mul 0
_ZXQmul 111175
_ZXQsqr 200580
_add 623078
_cmul 1040024
_gen_add 19237136
_gen_cmul 512818
_gen_mul 1839643
_gen_nored 2027538
_gen_one 2068636
_gen_sqr 591674
_gen_sub 0
_gen_zero 24184
_mul 276636
_mulXn 4528
_one 1018706
_oneXn 1939
_pow 88307
_red 723983
_sqr 67311
_sqrXn 11893
_sub 0
_zero 1232
_zeroXn 0
brent_kung_optpow 19443107
do_QXQ_eval 3262
gen_RgXQ_eval_powers 14562224
gen_bkeval 874019
gen_bkeval_powers 12468916
get_Rg_algebra 281050
rem 4042053
rfrac_deflate 140
rfrac_deflate_max 140
rfrac_deflate_order 140
zero_FpXQX_mod 616
zero_FpX_mod 102627

Generated by: LCOV version 1.16