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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - polarit2.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 90.3 % 2530 2284 Test Date: 2026-07-23 17:04:59 Functions: 95.6 % 225 215 Legend: Lines:     hit not hit

Function Name	Hit count
CX_factor	21
FE_matconcat	252
Flv_factorback	108623
FlxqV_factorback	2499
FpV_factorback	9009661
Fpmul	30234838
Fppow	244859
FqV_factorback	14
Lazard	137738
Lazard2	298237
Q_content	1843800
Q_content_safe	1292267296
Q_content_v	183094360
Q_denom	4108801
Q_denom_safe	253317322
Q_denom_v	55816617
Q_div_to_int	516086
Q_divi_to_int	175389544
Q_divmuli_to_int	12377716
Q_divq_to_int	11040322
Q_factor	21669
Q_factor_limit	13745
Q_gcd	1016361430
Q_mul_to_int	0
Q_muli_to_int	145646030
Q_primitive_part	90926726
Q_primpart	10089796
Q_remove_denom	57342849
Qi_cmp	91
Qi_factor	49
Qi_factor_p	42
Qi_gcd	399
Qi_normal	469
Qi_primpart	49
Qi_primpart_try	70
RX_factor	28
R_to_Q_down	525
R_to_Q_up	525
RgC_settype	273868912
RgM_RgC_type	33498076
RgM_rescale_to_int	4714032
RgM_settype	49710443
RgM_type	856659
RgM_type2	7678036
RgV_type	910478
RgV_type2	203
RgXQ_charpoly	12910
RgXQ_charpoly_FpXQ	14
RgXQ_charpoly_fast	12910
RgXQ_charpoly_i	1229662
RgXQ_factor	252
RgXQ_factor_i	252
RgXQ_inv	135272
RgXQ_inv_FpXQ	12054
RgXQ_inv_FpXQXQ	7
RgXQ_inv_fast	135272
RgXQ_inv_i	862
RgXQ_mul	1542661
RgXQ_mul_FpXQ	274309
RgXQ_mul_FpXQXQ	385
RgXQ_mul_fast	1542661
RgXQ_ratlift	112
RgXQ_sqr	466424
RgXQ_sqr_FpXQ	14
RgXQ_sqr_FpXQXQ	0
RgXQ_sqr_fast	466424
RgXY_factor	252
RgXY_factor_squarefree	280
RgXY_squff	252
RgX_Frobenius_deflate	329
RgX_Rg_mul_i	893829
RgX_Rg_type	6584758
RgX_chinese_coprime	0
RgX_cmbf	6643
RgX_disc	127766
RgX_disc_FpX	42
RgX_disc_FpXQX	28
RgX_disc_fast	127766
RgX_disc_i	413
RgX_extgcd	4970
RgX_extgcd_FpX	133
RgX_extgcd_FpXQX	7
RgX_extgcd_fast	4529
RgX_extgcd_simple	0
RgX_extresultant_FpX	77
RgX_extresultant_fast	1568
RgX_factor	13839
RgX_fix_quadratic	98
RgX_gcd	10413039
RgX_gcd_FpX	109025
RgX_gcd_FpXQX	7
RgX_gcd_FpXk	595
RgX_gcd_QXQX	3045
RgX_gcd_ZXQX	2499
RgX_gcd_fast	10413039
RgX_gcd_simple	0
RgX_halfgcd	0
RgX_halfgcd_all	63
RgX_halfgcd_all_FpX	28
RgX_halfgcd_all_FpXQX	0
RgX_halfgcd_all_fast	63
RgX_halfgcd_all_i	14
RgX_is_irred	11165
RgX_is_irred_i	11165
RgX_liftred	11088
RgX_neg_i	298237
RgX_pseudodenom	271486
RgX_rescale_to_int	37485
RgX_resultant_FpX	28
RgX_resultant_FpXQX	21
RgX_resultant_all	305275
RgX_resultant_sylvester	169914
RgX_settype	670673592
RgX_sturmpart	763
RgX_sylvestermatrix	169914
RgX_type	2760870
RgX_type2	151502509
RgX_type3	1542661
RgX_type_decode	11717928
RgX_type_is_composite	164076366
Rg_type	172523262
ZV_lcm	3605
ZX_content	13146
Z_content	10258665
Z_content_v	2381878
Zi_mul3	854
Zi_rem	427
_lcmii	8194
c_is_rational	3255
c_zero_gcd	1400
caract_const	126
centermod	12438398
centermod_i	15962293
centermodii	91831505
choosesubtype	38359232
choosetype	377310287
cont_gcd	1925256
cont_gcd_gen	2635
cont_gcd_pol	1912527
cont_gcd_pol_i	1912527
cont_gcd_rfrac	10115
content	72602418
deg1_from_roots	159705
factor	63816
factor0	59434
factor_domain	64516
factorback	1513067
factorback2	25507507
fix_lcm	105
fix_pol	343
gbezout	434
gc_gcdext	217
gcd3	6390
gcdext0	434
gcdiq	12980906
gcdmonome	3689
gcdqq	29127351
gdivexact	24315604
gen_cmp_RgXY	399
gen_factorback	34864990
ggcd	27681111
ggcd0	5219163
ghalfgcd	91
ginvmod	35231
glcm	3297
glcm0	2898
inexact	11410
init_resultant	1401739
isinexactall	2184
mul	55806665
must_negate	4368
newtonpoly	28
nextSousResultant	298237
normalized_mul	1847098
normalized_to_RgX	1173021
ok_bloc	455
padic_gcd	2726
pol_approx0	0
poldisc0	4721
polfromroots	56
polisirreducible	11165
polresultant0	637
polresultantext	1463
polresultantext0	1575
polsym	114691
polsym_gen	133017
powi	80850856
primitive_part	2900552
primpart	161
qgcd	154
quadratic_to_RgX	420
random_FpX_monic	119
reduceddiscsmith	7
reductum_lg	891897
rescale_init	30555377
resultant	1401711
resultant2	28
resultant_fast	1401711
rnfcharpoly	224
roots_from_deg1	63896
roots_to_pol	910468
roots_to_pol_FpV	14
roots_to_pol_FqV	7
roots_to_pol_fast	910394
roots_to_pol_r1	262662
row_Q_primpart	63763
s_centermod	0
scalar_bezout	112
scalar_res	7
settype	3847809495
sturmpart	385
sturmpart_i	1148
subres_step	11804
subresext	0
subresext_i	2360
syl_RgC	371755
syl_RgM	169921
sylvestermatrix	7
triv_cont_gcd	3276
vec_Q_primpart	121077
vecprod	10878
zero_bezout	63
zero_extgcd	434
zero_gcd	8255827
zero_gcd2	8867033

Generated by: LCOV version 2.0-1